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LONG-TERM DEBT (Details) (USD $)
In Millions, unless otherwise specified
1 Months Ended 0 Months Ended 9 Months Ended 0 Months Ended 9 Months Ended 0 Months Ended 9 Months Ended 0 Months Ended 6 Months Ended 6 Months Ended 6 Months Ended
May 31, 2011
Bermuda wireless operations
Sep. 20, 2013
Amended Credit Facility
One-week LIBOR
Sep. 20, 2013
Amended Credit Facility
One-week LIBOR
Sep. 20, 2013
Amended Credit Facility
One-month LIBOR
Sep. 20, 2013
Amended Credit Facility
One-month LIBOR
Sep. 20, 2013
Amended Credit Facility
Prime Rate
May 18, 2012
Term loans
Amended Credit Facility
item
Sep. 20, 2013
Term loans
Amended Credit Facility
LIBOR
Sep. 20, 2013
Term loans
Amended Credit Facility
Base rate
Sep. 20, 2013
Term loans
Amended Credit Facility
Minimum
LIBOR
Sep. 20, 2013
Term loans
Amended Credit Facility
Minimum
Base rate
Sep. 20, 2013
Term loans
Amended Credit Facility
Maximum
LIBOR
Sep. 20, 2013
Term loans
Amended Credit Facility
Maximum
Base rate
Jun. 30, 2014
Revolver loan
Minimum
LIBOR
Jun. 30, 2014
Revolver loan
Minimum
Base rate
Jun. 30, 2014
Revolver loan
Maximum
LIBOR
Jun. 30, 2014
Revolver loan
Maximum
Base rate
Jun. 30, 2014
Revolver loan
Amended Credit Facility
Jun. 30, 2014
Revolver loan
Amended Credit Facility
LIBOR
Jun. 30, 2014
Revolver loan
Amended Credit Facility
Base rate
Jun. 30, 2014
Revolver loan
Amended Credit Facility
Minimum
Jun. 30, 2014
Revolver loan
Amended Credit Facility
Maximum
Jun. 30, 2014
Swingline sub-facility
Amended Credit Facility
Jun. 30, 2014
Swingline sub-facility
Amended Credit Facility
Minimum
Base rate
Jun. 30, 2014
Swingline sub-facility
Amended Credit Facility
Maximum
Base rate
Jun. 30, 2014
Letter of credit sub-facility
Amended Credit Facility
May 02, 2011
Note payable - other
M3 Wireless, Ltd.
Keytech Ltd.
Long-term debt                                                      
Maximum borrowing capacity                                   $ 100.0         $ 10.0     $ 55.0  
Number of term loans             2                                        
Description of variable rate basis     one-week LIBOR   one-month LIBOR Prime Rate   LIBOR Base Rate                   LIBOR Base Rate              
Basis spread on variable rate (as a percent)   1.50%   1.50%           2.00% 1.00% 4.00% 3.00% 2.00% 1.00% 3.50% 2.50%             0.50% 2.00%    
Commitment fee (as a percent)                                         0.25% 0.50%          
Term loan assumed                                                     $ 7.0
Ownership interest held by minority shareholder (as a percent) 42.00%                                                    
Effective interest rate (as a percent)                                                     7.00%